Looking at heat exchanger radiators, basically a normal radiator with an
oil cooler built in to the bottom tank, C&R Racing make radiators for Nascar, hit something and it all goes!
Aeroquip make an
oil cooler that goes in the bottom radiator hose, and has two -12 fittings for your
oil lines, this may be more manageable than an all in one radiator as first mentioned in the post, and is probably similar to what
"Jac Mac" mentioned earlier in this thread!
Morris,
I reckon that a heat exchanger negates the need for a thermostat, as it would more than likely speed up warm up and balance the different fluids simply!
The only downside is not having the nice air cooler in the front cowling